Kroger. Groceries. :steam:.
I was an idiot and jumped from a bagger position to a cashier position for a 5 cent raise pretty early on. I didn't get tips as a cashier, where I did as a bagger, so I got paid less for more work.
Oh, and the union completely hid the fact that they covered employees for free for the first few months, so I joined early; they siphoned from my paycheck and I got nothing in return.
The company could still apparently schedule me, a high-school student, 35+ hours a week. So I'm not sure what the union actually did other than take money from people.